posted by dan on .
Assume that a losing stream exists in physical connection with groundwater in an isotropic unconfined aquifer. Assume that several contour lines of equal head cross the stream and intercept it. These contour lines of equal head are "V-shaped", with the point of the "V" facing downgradient, or downstream. True or False: The lines of equal head have lower values as the stream is approached at right angles.